Side bearing for railway-cars.



11. A. LAUGHLIN.

SIDE BEARING FOR RAILWAY GARS.

APPLICATION FILED AUG.9,1909.

Patented Aug. 15,1911.

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A. LAUGHLIN.

SIDE BEARING FOR RAILWAY CARS.

APPLICATION FILED AUG.9.1909,

Patented Aug. 15, 1911.

' To all whom it may concern.

Be'fit known that I, ELMYR A. IJAUGH-LIN,

' fand e resident of Chicago, IOook county,

State of Illinois, have invented certain" new and useful Improven'oents in Side Bearings? for Railwav-Gars of which the fol-lowing'is' a s ec'ificatio'n. I i

he main objects of this inventiona re to Ezovide an improved construction for side. arings for railway ears,perticularly in that type of side bearings in which one or more'rollersLtraveling in a runway transmit the load' from the body of the car to the. .truck bolsters; to provides-n improved con struction for side bearings whereby the antifr-iction rollers will be so mounted that they will stall times "be free to rotate through the relative. movements of the ca r'body and i'ngoffthe side bearm truck holster whei the c'ar is passing around a curve;-and to provlde an improved con- 'struction for the supporting frame "or' -casexcessive frictional resistance to the rotation nary construction; to provide improved means for ihsurmgthe center ng-ofthe antiof the rollers at the ehds'ohthe runways? and therebyavoid the flattening of the roll-- 'ers which occurs in sidejbearlngs" 'o;E'ordifriction'roller's at times when the load is for en instant removed from "the ro1lers';'-' and to provide ani'mproved construction in thefremewhich will permit of easyes "sembling of the parts, and pennit of removing for replacing the "springs and wear ing p W th rem i h it b from the "car. These objects ere accent-'- plish'ed by the [construction shown in the: accompanying drawings,f"-in which: Figure .1 illustrates I a, specific construction showing the invention applied to e-"side i Fig. 3 is a section on the line 3 .-3 of Fig. 1.

this being partly in section and takention'on the -line"5 "51ofFig::-4.-E Fig. 6. is 9, T detoil fshowing'thfi relation ofithe centering "iollowers' with the. stop-whichpry bearing with" a single antifriction' roller;

Fig. 2 lse' section on the line:2-2 ofFig. 1.

.Fl ."4'is a "viewcorresp'ohdin' "to Fig. '1,

an illustrates themanner inw ichLthe inventlonzis carried 'out 1n sldeibearmgs :m

which there are more thano single'roller;

onithe line 44 ofFig. 5: Fig. 5" is .a "sen- Specification. Letters Patent. Patenitd Application filed August 9; 1909. v Serial 'No. 511,921.

p 1 die position. a citizen of 'theUnited States of America,

- ahollow casing comprising it are provided with gl 1 id eW8;y 6 within 0 which the trunnions operate, and eho'ne runW'ay,- the side walls havevertical than adapted to prevent.

place.

roller and supports the load. The wear a "plate is, however, of such length thatwhen 'the'roller is at either limit of -='its"'tro;vel irr 35' the "runway it will have passed =cleam'of the wear-plate 8; andthe load will borneb? theu-pper surfaces 9"of th 'e =guideways 6 surfaces '9 are- SQ--'l06$td thet they i will. have contact withtheitrunnions fi-ionttk at times when the roller -iis z'tit -or nea'r one "of" the limited its "movement. ifTTh-JOWQI surface 10. 'ofjthegu'ideways lis located at -'to engage the trunn-ious 5;. and suipport them;

body; the frame as bovetim norl ed in, the irunweys .6 andiidhntedht i molly vents either of-them from In the construction shownf tlieiilll? frameiof the sidebearin'g' ifs "e oi'ni" frame 1-c1osed'at' the topan'd h'avi'lig opening 3' in" the bottom; through which -the antifrietion roller or rollers 4 protrudd'; 5

The cavity within the body londthe opeh ing 3. areof considerably fgreiter length than the diameter-of the roller} or the. i. of the diameters, if there" are'irfore than? 011e, 8 5. to form a runway in which. the rollers work The roller 4: is provided with trunnions 5" of considerably less diameter than "the-Brady of the roller, and the 'side wallsof the mm of the ca sing which is intermediate the limits of the travel of the -rollerw-in thw ne1s-7'extending upwardinto the gi ideweyu 6, topermitthe roller} to The wear-plate 8. mountedj in in position to bear upon "the moot-the roller 1 1 '4." When the roller 4 is adjacent to' its 1163- 86 die or "normal position, the-wearplate bears 'u'pon the top of theperiphery-of the 1 roller when, through: or the on position with the car. 1

Apair of followers 11- d bly" mount;

tivelyopposite;sides of the-roller.-. q are-'1 so. shaped aspto extend into with theQtrunfnion-sfi without tact :with the periphery oi f'flieyfolm Springs 12 bear onthe'follofvversil Di urge the' roller! to pod,

tion. The springs 12 are secured against displacement by sockets '13 in the. ends of the frame and projectionsel l on the followers. In order to prevent either of the followers 11 from passing the middle point in the range oftravel of the roller 4, stops are provided, which are preferably in'the form of blocks 15 located between the sides of the passages 7 so that their tops will be substantially flush with surfaces 10. Each follower is provided'with a depending lug 16 which extends into a groove 17 in the bottom of each guideway and abuts against the stop l5to prevent: its passing the middle position as mentioned. The stop 15 forms an extension of one of the lower surfaces 10 of the guidewa-ys 6, and prevents the rollers 4 from falling outthrough the open bottom of the frame in -case of tilting of the car. The movement of the followers '11 toward each end of the .frame is limited by the shoulders 18 at the ends of the guideways.

For convenience in assembling the parts,

. the side walls of the frame are provided with slots "or seats 19 into which the wearplate 8 may be slipped from 'oneside, and

, said plate 8 is held in position by lugs 20 cast integral with the frame and bent downafter the plate 8 is in position. There is a plurality of such lugs so that if one is broken off, in removing the plate 8, another lug may, be used for holding the next plate 8. The spring sockets are open at their outer ends to permit the insertion of the springs, and the springs are held in by stout pins 21. e

The modified construction shown in Figs. 4: and 5 is similar to that shown in the other -views, withthe exception that it includes a plurality of anti-friction rollers 4 separated by a' spacer block 22. Similarly to the formation of the followers 11, the spacer 22 is formed so that it has -contact-with the trunn'ions of the rollers without. touching the peripheries thereof. In thiscase' there is the same number of-wear plates 8 as there .are rollers 4, and these wear-plates'are so located that the rollers will not be in con tact with them when at either limit of their movement.

The operation ofthe device shown is as follows: In assembling the bearing; the wear-plates 8 are first secured in plaee,'then the followers arepassed one at a timethrough the passages 7 into the guideways '6, the first follower being pushed'to one side 7 so as to allowthe second one to be inserted into position. After the followers are in po-' sition, the rollers 4 are" inserted between the followers, then the block 15 is inserted to close the passages 7 and finally the springs 12 are inserted at the ends of the spring sockets 13 and secured by the keys 21. This device is now ready to be bolted-to the body bolster of the car above a suitable bottom plate bolted to the truck bolster, as is usual, this bottom plate being not shown in the drawings and being merely a suitable plate of metal upon which the'rollers 1 ride. I In case any part becomes worn out, or broken,

it can'be replaced without disconnecting'the.

frame from the car.

'It will be understood that numerous details -of'the construction-shown may be altered or omitted without departing from the spirit of this invention. I claim: a

1. A side bearing comprising a frame having therein a'roller runway open at the bottom, a roller mounted in said runwayand provided with trunnions, spring pressed followers engaging said tr-unnions normally urging the roller to a certain position in-the frame,',a member having a bearing-surface adapted to bear on the periphery of said roller,- the range of movement of said roller in 'said. runway being such that it can roll off from said bearing-surface, members having auxiliary bearing-surfaces located adjacent to said trunnions and adapted to support the load when said roller is at one of the limits of its travelin said frame.

2. A side bearing comprising a frame, one or more antifriction rollers supported in said frame and having a limited range'of travel thereinfa member having a bearingsurface adapted, to bear'on said roller for supporting the load when the roller; is in an intermediate part of its travel, and means for guiding said roller and adapted when said roller is adjacent to the ends of its travelto transfer the load to the axle of the roller and support said roller clear of said bearing-surface.

3. A side bearing comprising a frame,

one or more antifriction rollers supported in said frame and having a limited range of travel therein, a member having a bearing-surface adapted to bear on said roller for supporting the load when the rolleris in an intermediate part of its travel, means for guiding said roller and adapted when said roller is adjacent to the ends of its travel to transfer the load to the axle of the roller and support said roller clear of said beara middle position in said, frame a member having a bearing esurface located to engage the top of said roller. when in its middle position, said roller being movable beyond one end of said surface and said guideway being arranged to support and guide said roller mounted to roll in said runway, trunnions on said roller, means engaging said trun'nions and normally urging said roller to a certain position intermediate of the position, mitting ends of said runway, said frame having a bearing surface located to engage the periph' ery of said roller when said roller is adjacent to said normal intermediate position, said frame having aguiding surface adapted to receive said trunnions and transmit the load to said roller when it is away from said intermediate position; I

" 6. In a side bearing the combination of a supporting frame having a runway therein, an antifrict-ion roller in said runway, trunnions on said roller, and means on said frame adapted to cause the load to be sup 25 ported by the' upper part ofthe periphery of said roller when the roller isin an intermediate position in said runway and to be supported upon said trunnion's when the roller is adjacent to the end of said runway. 7. In a side bearing, the combinationof a frame having a runway therein, a series of trunnioned antifriction rollers mounted to travel in said runway, spacing means be tween said rollers, means normally urging said rollers to a normal position intermediateof the ends of said runway, a series of bearing surfaces, one for each roller, adapted to bear on the peripheries of said rollers when in said normal position and terminating so as to permit said'rollers to pass clear of said surfaces when moved in said runway awayfrom said intermedlate and means on said frame for transthe load to the trunnions otsaid rollers, when the rollers are clear of said bearing surfaces. 1 8. In a side bearing, the combination of a frame having a runway therein, a series of trunnioned antifriction rollers mounted to travel in said, runway, spacing means-lief tween said rollers, means normally urging said rollers to a normal position in termediate of the ends of said runway,

a series of removable wear-plates, one for each roller, adapted to bear on the pe ripheries of saidrollers when in said'normal position and terminating soas to per- .mit said rollers to pass clear of said wearplates when moved in said runway away from said intermediate position, and means on said frame for transmitting the load tothe trunnions of said rollers, when the 4 rollers are clear of said wear-plates.

9. In a side bearing, the combination of a frame having a runway therein, a series of trunnioned antifriction rollers mounted to travel in said runway, movable spacing gaging the trunnions of the end rollers andnormallyurgmg said rollers. to anormal posit on intermediate of the ends of said means between said rollers, followers enrunway, a series of bearing surfaces, one,"

for each roller, adapted to bear on the perlpheries of said rollers when in said normal position and terminating so as to 'per-L mit said rollers to pass clear of said surfaces when moved in sa d runway away from said intermedlat-e pos1t1on,-and means on said frame, for transmitting the load to the trunnions of said rollers, when the rollers are clear of said bearing surfaces.

10. A side bearing comprislng a frame ter the samein said frame, and stops on said frame located in the path of said followers and adapted to limit the movement ofsaid followers toward each other. i.

Signed a Chicago this 29th day of duly', 1909. a

" ELMYR A. LAUGHLIN.

Witnesses:

' VV. J. Jones,

L. V. CALHOUN. 

